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1.  An extract from the Atlantic brown algae Saccorhiza polyschides counteracts diet-induced obesity in mice via a gut related multi-factorial mechanisms 
Oncotarget  2017;8(43):73501-73515.
In this study we addressed the questions whether an Atlantic brown algae extract (BAE) affects diet induced obesity in mice and which would be the primary targets and underlying key mechanisms.
Male C57 BL/6 mice were fed a hypercaloric diet, referred to as high fat diet (HFD), supplemented with a freeze-dried aqueous BAE from Saccorhiza polyschides (5 %) for 8 months. Compared to the control group, dietary BAE supplementation significantly attenuated increase in body weight and fat mass. We observed apparent metabolic improvement including normalization of blood glucose, reduced plasma leptin, reduced fecal bile salt hydrolase activity with lower microbial production of toxic bile acid metabolites in the gut and increased systemic bile acid circulation in BAE-fed mice counteracting adverse effects of long term HFD feeding. Survival of mice receiving dietary BAE supplementation appeared slightly enhanced; however, median and maximal life spans as well as hepatic mTOR activation were not significantly different between BAE and control mice.
We suggest that the beneficial metabolic effects of our BAE are at least partly mediated by alterations in gut microbiota associated with fermentation of indigestible polysaccharides that are major components of brown algae such as alginates and fucoidans. We moreover propose a multi-factorial mechanism that involves profound alterations in bile acid homeostasis, changes in intestinal and systemic glucose metabolism likely including increased intestinal gluconeogenesis, increased activity of the intestinally derived hormone GLP-1 contributing to promote systemic insulin sensitivity, and inhibition of α-amylase activity, which expectably limits dietary carbohydrate digestion and glucose release.
PMCID: PMC5650277
circulating bile acids; bile salt hydrolase activity; intestinal gluconeogenesis; life span; mTOR activation; Gerotarget
2.  Anti-Inflammatory Properties of Brazilian Green Propolis Encapsulated in a γ-Cyclodextrin Complex in Mice Fed a Western-Type Diet 
Ageing is often accompanied by chronic inflammation. A fat- and sugar-rich Western-type diet (WTD) may accelerate the ageing phenotype. Cell culture studies have indicated that artepillin C-containing Brazilian green propolis exhibits anti-inflammatory properties. However, little is known regarding its anti-inflammatory potential in mouse liver in vivo. In this study, female C57BL/6NRj wild-type mice were fed a WTD, a WTD supplemented with Brazilian green propolis supercritical extract (GPSE) encapsulated in γ-cyclodextrin (γCD) or a WTD plus γCD for 10 weeks. GPSE-γCD did not affect the food intake, body weight or body composition of the mice. However, mRNA levels of the tumour necrosis factor α were significantly downregulated (p < 0.05) in these mice compared to those in the WTD-fed controls. Furthermore, the gene expression levels of other pro-inflammatory markers, including serum amyloid P, were significantly (p < 0.001) decreased following GPSE-γCD treatment. GPSE-γCD significantly induced hepatic ferritin gene expression (p < 0.01), which may contribute to its anti-inflammatory properties. Conversely, GPSE-γCD did not affect the biomarkers of endogenous antioxidant defence, including catalase, glutathione peroxidase-4, paraoxonase-1, glutamate cysteine ligase and nuclear factor erythroid 2-related factor-2 (Nrf2). Overall, the present data suggest that dietary GPSE-γCD exhibits anti-inflammatory, but not antioxidant activity in mouse liver in vivo. Thus, GPSE-γCD has the potential to serve as a natural hepatoprotective bioactive compound for dietary-mediated strategies against chronic inflammation.
PMCID: PMC5485965  PMID: 28587122
Brazilian green propolis; artepillin C; mice; inflammation; antioxidant defence; diet
3.  Guidelines for the use and interpretation of assays for monitoring autophagy (3rd edition) 
Klionsky, Daniel J | Abdelmohsen, Kotb | Abe, Akihisa | Abedin, Md Joynal | Abeliovich, Hagai | Acevedo Arozena, Abraham | Adachi, Hiroaki | Adams, Christopher M | Adams, Peter D | Adeli, Khosrow | Adhihetty, Peter J | Adler, Sharon G | Agam, Galila | Agarwal, Rajesh | Aghi, Manish K | Agnello, Maria | Agostinis, Patrizia | Aguilar, Patricia V | Aguirre-Ghiso, Julio | Airoldi, Edoardo M | Ait-Si-Ali, Slimane | Akematsu, Takahiko | Akporiaye, Emmanuel T | Al-Rubeai, Mohamed | Albaiceta, Guillermo M | Albanese, Chris | Albani, Diego | Albert, Matthew L | Aldudo, Jesus | Algül, Hana | Alirezaei, Mehrdad | Alloza, Iraide | Almasan, Alexandru | Almonte-Beceril, Maylin | Alnemri, Emad S | Alonso, Covadonga | Altan-Bonnet, Nihal | Altieri, Dario C | Alvarez, Silvia | Alvarez-Erviti, Lydia | Alves, Sandro | Amadoro, Giuseppina | Amano, Atsuo | Amantini, Consuelo | Ambrosio, Santiago | Amelio, Ivano | Amer, Amal O | Amessou, Mohamed | Amon, Angelika | An, Zhenyi | Anania, Frank A | Andersen, Stig U | Andley, Usha P | Andreadi, Catherine K | Andrieu-Abadie, Nathalie | Anel, Alberto | Ann, David K | Anoopkumar-Dukie, Shailendra | Antonioli, Manuela | Aoki, Hiroshi | Apostolova, Nadezda | Aquila, Saveria | Aquilano, Katia | Araki, Koichi | Arama, Eli | Aranda, Agustin | Araya, Jun | Arcaro, Alexandre | Arias, Esperanza | Arimoto, Hirokazu | Ariosa, Aileen R | Armstrong, Jane L | Arnould, Thierry | Arsov, Ivica | Asanuma, Katsuhiko | Askanas, Valerie | Asselin, Eric | Atarashi, Ryuichiro | Atherton, Sally S | Atkin, Julie D | Attardi, Laura D | Auberger, Patrick | Auburger, Georg | Aurelian, Laure | Autelli, Riccardo | Avagliano, Laura | Avantaggiati, Maria Laura | Avrahami, Limor | Awale, Suresh | Azad, Neelam | Bachetti, Tiziana | Backer, Jonathan M | Bae, Dong-Hun | Bae, Jae-sung | Bae, Ok-Nam | Bae, Soo Han | Baehrecke, Eric H | Baek, Seung-Hoon | Baghdiguian, Stephen | Bagniewska-Zadworna, Agnieszka | Bai, Hua | Bai, Jie | Bai, Xue-Yuan | Bailly, Yannick | Balaji, Kithiganahalli Narayanaswamy | Balduini, Walter | Ballabio, Andrea | Balzan, Rena | Banerjee, Rajkumar | Bánhegyi, Gábor | Bao, Haijun | Barbeau, Benoit | Barrachina, Maria D | Barreiro, Esther | Bartel, Bonnie | Bartolomé, Alberto | Bassham, Diane C | Bassi, Maria Teresa | Bast, Robert C | Basu, Alakananda | Batista, Maria Teresa | Batoko, Henri | Battino, Maurizio | Bauckman, Kyle | Baumgarner, Bradley L | Bayer, K Ulrich | Beale, Rupert | Beaulieu, Jean-François | Beck, George R. | Becker, Christoph | Beckham, J David | Bédard, Pierre-André | Bednarski, Patrick J | Begley, Thomas J | Behl, Christian | Behrends, Christian | Behrens, Georg MN | Behrns, Kevin E | Bejarano, Eloy | Belaid, Amine | Belleudi, Francesca | Bénard, Giovanni | Berchem, Guy | Bergamaschi, Daniele | Bergami, Matteo | Berkhout, Ben | Berliocchi, Laura | Bernard, Amélie | Bernard, Monique | Bernassola, Francesca | Bertolotti, Anne | Bess, Amanda S | Besteiro, Sébastien | Bettuzzi, Saverio | Bhalla, Savita | Bhattacharyya, Shalmoli | Bhutia, Sujit K | Biagosch, Caroline | Bianchi, Michele Wolfe | Biard-Piechaczyk, Martine | Billes, Viktor | Bincoletto, Claudia | Bingol, Baris | Bird, Sara W | Bitoun, Marc | Bjedov, Ivana | Blackstone, Craig | Blanc, Lionel | Blanco, Guillermo A | Blomhoff, Heidi Kiil | Boada-Romero, Emilio | Böckler, Stefan | Boes, Marianne | Boesze-Battaglia, Kathleen | Boise, Lawrence H | Bolino, Alessandra | Boman, Andrea | Bonaldo, Paolo | Bordi, Matteo | Bosch, Jürgen | Botana, Luis M | Botti, Joelle | Bou, German | Bouché, Marina | Bouchecareilh, Marion | Boucher, Marie-Josée | Boulton, Michael E | Bouret, Sebastien G | Boya, Patricia | Boyer-Guittaut, Michaël | Bozhkov, Peter V | Brady, Nathan | Braga, Vania MM | Brancolini, Claudio | Braus, Gerhard H | Bravo-San Pedro, José M | Brennan, Lisa A | Bresnick, Emery H | Brest, Patrick | Bridges, Dave | Bringer, Marie-Agnès | Brini, Marisa | Brito, Glauber C | Brodin, Bertha | Brookes, Paul S | Brown, Eric J | Brown, Karen | Broxmeyer, Hal E | Bruhat, Alain | Brum, Patricia Chakur | Brumell, John H | Brunetti-Pierri, Nicola | Bryson-Richardson, Robert J | Buch, Shilpa | Buchan, Alastair M | Budak, Hikmet | Bulavin, Dmitry V | Bultman, Scott J | Bultynck, Geert | Bumbasirevic, Vladimir | Burelle, Yan | Burke, Robert E | Burmeister, Margit | Bütikofer, Peter | Caberlotto, Laura | Cadwell, Ken | Cahova, Monika | Cai, Dongsheng | Cai, Jingjing | Cai, Qian | Calatayud, Sara | Camougrand, Nadine | Campanella, Michelangelo | Campbell, Grant R | Campbell, Matthew | Campello, Silvia | Candau, Robin | Caniggia, Isabella | Cantoni, Lavinia | Cao, Lizhi | Caplan, Allan B | Caraglia, Michele | Cardinali, Claudio | Cardoso, Sandra Morais | Carew, Jennifer S | Carleton, Laura A | Carlin, Cathleen R | Carloni, Silvia | Carlsson, Sven R | Carmona-Gutierrez, Didac | Carneiro, Leticia AM | Carnevali, Oliana | Carra, Serena | Carrier, Alice | Carroll, Bernadette | Casas, Caty | Casas, Josefina | Cassinelli, 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Yongshun | Chen, Yu-Jen | Chen, Yue-Qin | Chen, Yujie | Chen, Zhen | Chen, Zhong | Cheng, Alan | Cheng, Christopher HK | Cheng, Hua | Cheong, Heesun | Cherry, Sara | Chesney, Jason | Cheung, Chun Hei Antonio | Chevet, Eric | Chi, Hsiang Cheng | Chi, Sung-Gil | Chiacchiera, Fulvio | Chiang, Hui-Ling | Chiarelli, Roberto | Chiariello, Mario | Chieppa, Marcello | Chin, Lih-Shen | Chiong, Mario | Chiu, Gigi NC | Cho, Dong-Hyung | Cho, Ssang-Goo | Cho, William C | Cho, Yong-Yeon | Cho, Young-Seok | Choi, Augustine MK | Choi, Eui-Ju | Choi, Eun-Kyoung | Choi, Jayoung | Choi, Mary E | Choi, Seung-Il | Chou, Tsui-Fen | Chouaib, Salem | Choubey, Divaker | Choubey, Vinay | Chow, Kuan-Chih | Chowdhury, Kamal | Chu, Charleen T | Chuang, Tsung-Hsien | Chun, Taehoon | Chung, Hyewon | Chung, Taijoon | Chung, Yuen-Li | Chwae, Yong-Joon | Cianfanelli, Valentina | Ciarcia, Roberto | Ciechomska, Iwona A | Ciriolo, Maria Rosa | Cirone, Mara | Claerhout, Sofie | Clague, Michael J | Clària, Joan | Clarke, Peter GH | Clarke, Robert | Clementi, Emilio | Cleyrat, Cédric | Cnop, Miriam | Coccia, Eliana M | Cocco, Tiziana | Codogno, Patrice | Coers, Jörn | Cohen, Ezra EW | Colecchia, David | Coletto, Luisa | Coll, Núria S | Colucci-Guyon, Emma | Comincini, Sergio | Condello, Maria | Cook, Katherine L | Coombs, Graham H | Cooper, Cynthia D | Cooper, J Mark | Coppens, Isabelle | Corasaniti, Maria Tiziana | Corazzari, Marco | Corbalan, Ramon | Corcelle-Termeau, Elisabeth | Cordero, Mario D | Corral-Ramos, Cristina | Corti, Olga | Cossarizza, Andrea | Costelli, Paola | Costes, Safia | Cotman, Susan L | Coto-Montes, Ana | Cottet, Sandra | Couve, Eduardo | Covey, Lori R | Cowart, L Ashley | Cox, Jeffery S | Coxon, Fraser P | Coyne, Carolyn B | Cragg, Mark S | Craven, Rolf J | Crepaldi, Tiziana | Crespo, Jose L | Criollo, Alfredo | Crippa, Valeria | Cruz, Maria Teresa | Cuervo, Ana Maria | Cuezva, Jose M | Cui, Taixing | Cutillas, Pedro R | Czaja, Mark J | Czyzyk-Krzeska, Maria F | Dagda, Ruben K | Dahmen, Uta | Dai, Chunsun | Dai, Wenjie | Dai, Yun | Dalby, Kevin N | Dalla Valle, Luisa | Dalmasso, Guillaume | D'Amelio, Marcello | Damme, Markus | Darfeuille-Michaud, Arlette | Dargemont, Catherine | Darley-Usmar, Victor M | Dasarathy, Srinivasan | Dasgupta, Biplab | Dash, Srikanta | Dass, Crispin R | Davey, Hazel Marie | Davids, Lester M | Dávila, David | Davis, Roger J | Dawson, Ted M | Dawson, Valina L | Daza, Paula | de Belleroche, Jackie | de Figueiredo, Paul | de Figueiredo, Regina Celia Bressan Queiroz | de la Fuente, José | De Martino, Luisa | De Matteis, Antonella | De Meyer, Guido RY | De Milito, Angelo | De Santi, Mauro | de Souza, Wanderley | De Tata, Vincenzo | De Zio, Daniela | Debnath, Jayanta | Dechant, Reinhard | Decuypere, Jean-Paul | Deegan, Shane | Dehay, Benjamin | Del Bello, Barbara | Del Re, Dominic P | Delage-Mourroux, Régis | Delbridge, Lea MD | Deldicque, Louise | Delorme-Axford, Elizabeth | Deng, Yizhen | Dengjel, Joern | Denizot, Melanie | Dent, Paul | Der, Channing J | Deretic, Vojo | Derrien, Benoît | Deutsch, Eric | Devarenne, Timothy P | Devenish, Rodney J | Di Bartolomeo, Sabrina | Di Daniele, Nicola | Di Domenico, Fabio | Di Nardo, Alessia | Di Paola, Simone | Di Pietro, Antonio | Di Renzo, Livia | DiAntonio, Aaron | Díaz-Araya, Guillermo | Díaz-Laviada, Ines | Diaz-Meco, Maria T | Diaz-Nido, Javier | Dickey, Chad A | Dickson, Robert C | Diederich, Marc | Digard, Paul | Dikic, Ivan | Dinesh-Kumar, Savithrama P | Ding, Chan | Ding, Wen-Xing | Ding, Zufeng | Dini, Luciana | Distler, Jörg HW | Diwan, Abhinav | Djavaheri-Mergny, Mojgan | Dmytruk, Kostyantyn | Dobson, Renwick CJ | Doetsch, Volker | Dokladny, Karol | Dokudovskaya, Svetlana | Donadelli, Massimo | Dong, X Charlie | Dong, Xiaonan | Dong, Zheng | Donohue, Terrence M | Doran, Kelly S | D'Orazi, Gabriella | Dorn, Gerald W | Dosenko, Victor | Dridi, Sami | Drucker, Liat | Du, Jie | Du, Li-Lin | Du, Lihuan | du Toit, André | Dua, Priyamvada | Duan, Lei | Duann, Pu | Dubey, Vikash Kumar | Duchen, Michael R | Duchosal, Michel A | Duez, Helene | Dugail, Isabelle | Dumit, Verónica I | Duncan, Mara C | Dunlop, Elaine A | Dunn, William A | Dupont, Nicolas | Dupuis, Luc | Durán, Raúl V | Durcan, Thomas M | Duvezin-Caubet, Stéphane | Duvvuri, Umamaheswar | Eapen, Vinay | Ebrahimi-Fakhari, Darius | Echard, Arnaud | Eckhart, Leopold | Edelstein, Charles L | Edinger, Aimee L | Eichinger, Ludwig | Eisenberg, Tobias | Eisenberg-Lerner, Avital | Eissa, N Tony | El-Deiry, Wafik S | El-Khoury, Victoria | Elazar, Zvulun | Eldar-Finkelman, Hagit | Elliott, Chris JH | Emanuele, Enzo | Emmenegger, Urban | Engedal, Nikolai | Engelbrecht, Anna-Mart | Engelender, Simone | Enserink, Jorrit M | Erdmann, Ralf | Erenpreisa, Jekaterina | Eri, Rajaraman | Eriksen, Jason L | Erman, Andreja | Escalante, Ricardo | Eskelinen, Eeva-Liisa | Espert, Lucile | Esteban-Martínez, Lorena | Evans, Thomas J | Fabri, Mario | Fabrias, Gemma | Fabrizi, Cinzia | Facchiano, Antonio | Færgeman, Nils J | Faggioni, Alberto | Fairlie, W Douglas | Fan, Chunhai | Fan, Daping | Fan, Jie | Fang, Shengyun | Fanto, Manolis | Fanzani, Alessandro | Farkas, Thomas | Faure, Mathias | Favier, Francois B | Fearnhead, Howard | Federici, Massimo | Fei, Erkang | Felizardo, Tania C | Feng, Hua | Feng, Yibin | Feng, Yuchen | Ferguson, Thomas A | Fernández, Álvaro F | Fernandez-Barrena, Maite G | Fernandez-Checa, Jose C | Fernández-López, Arsenio | Fernandez-Zapico, Martin E | Feron, Olivier | Ferraro, Elisabetta | Ferreira-Halder, Carmen Veríssima | Fesus, Laszlo | Feuer, Ralph | Fiesel, Fabienne C | Filippi-Chiela, Eduardo C | Filomeni, Giuseppe | Fimia, Gian Maria | Fingert, John H | Finkbeiner, Steven | Finkel, Toren | Fiorito, Filomena | Fisher, Paul B | Flajolet, Marc | Flamigni, Flavio | Florey, Oliver | Florio, Salvatore | Floto, R Andres | Folini, Marco | Follo, Carlo | Fon, Edward A | Fornai, Francesco | Fortunato, Franco | Fraldi, Alessandro | Franco, Rodrigo | Francois, Arnaud | François, Aurélie | Frankel, Lisa B | Fraser, Iain DC | Frey, Norbert | Freyssenet, Damien G | Frezza, Christian | Friedman, Scott L | Frigo, Daniel E | Fu, Dongxu | Fuentes, José M | Fueyo, Juan | Fujitani, Yoshio | Fujiwara, Yuuki | Fujiya, Mikihiro | Fukuda, Mitsunori | Fulda, Simone | Fusco, Carmela | Gabryel, Bozena | Gaestel, Matthias | Gailly, Philippe | Gajewska, Malgorzata | Galadari, Sehamuddin | Galili, Gad | Galindo, Inmaculada | Galindo, Maria F | Galliciotti, Giovanna | Galluzzi, Lorenzo | Galluzzi, Luca | Galy, Vincent | Gammoh, Noor | Gandy, Sam | Ganesan, Anand K | Ganesan, Swamynathan | Ganley, Ian G | Gannagé, Monique | Gao, Fen-Biao | Gao, Feng | Gao, Jian-Xin | García Nannig, Lorena | García Véscovi, Eleonora | Garcia-Macía, Marina | Garcia-Ruiz, Carmen | Garg, Abhishek D | Garg, Pramod Kumar | Gargini, Ricardo | Gassen, Nils Christian | Gatica, Damián | Gatti, Evelina | Gavard, Julie | Gavathiotis, Evripidis | Ge, Liang | Ge, Pengfei | Ge, Shengfang | Gean, Po-Wu | Gelmetti, Vania | Genazzani, Armando A | Geng, Jiefei | Genschik, Pascal | Gerner, Lisa | Gestwicki, Jason E | Gewirtz, David A | Ghavami, Saeid | Ghigo, Eric | Ghosh, Debabrata | Giammarioli, Anna Maria | Giampieri, Francesca | Giampietri, Claudia | Giatromanolaki, Alexandra | Gibbings, Derrick J | Gibellini, Lara | Gibson, Spencer B | Ginet, Vanessa | Giordano, Antonio | Giorgini, Flaviano | Giovannetti, Elisa | Girardin, Stephen E | Gispert, Suzana | Giuliano, Sandy | Gladson, Candece L | Glavic, Alvaro | Gleave, Martin | Godefroy, Nelly | Gogal, Robert M | Gokulan, Kuppan | Goldman, Gustavo H | Goletti, Delia | Goligorsky, Michael S | Gomes, Aldrin V | Gomes, Ligia C | Gomez, Hernando | Gomez-Manzano, Candelaria | Gómez-Sánchez, Rubén | Gonçalves, Dawit AP | Goncu, Ebru | Gong, Qingqiu | Gongora, Céline | Gonzalez, Carlos B | Gonzalez-Alegre, Pedro | Gonzalez-Cabo, Pilar | González-Polo, Rosa Ana | Goping, Ing Swie | Gorbea, Carlos | Gorbunov, Nikolai V | Goring, Daphne R | Gorman, Adrienne M | Gorski, Sharon M | Goruppi, Sandro | Goto-Yamada, Shino | Gotor, Cecilia | Gottlieb, Roberta A | Gozes, Illana | Gozuacik, Devrim | Graba, Yacine | Graef, Martin | Granato, Giovanna E | Grant, Gary Dean | Grant, Steven | Gravina, Giovanni Luca | Green, Douglas R | Greenhough, Alexander | Greenwood, Michael T | Grimaldi, Benedetto | Gros, Frédéric | Grose, Charles | Groulx, Jean-Francois | Gruber, Florian | Grumati, Paolo | Grune, Tilman | Guan, Jun-Lin | Guan, Kun-Liang | Guerra, Barbara | Guillen, Carlos | Gulshan, Kailash | Gunst, Jan | Guo, Chuanyong | Guo, Lei | Guo, Ming | Guo, Wenjie | Guo, Xu-Guang | Gust, Andrea A | Gustafsson, Åsa B | Gutierrez, Elaine | Gutierrez, Maximiliano G | Gwak, Ho-Shin | Haas, Albert | Haber, James E | Hadano, Shinji | Hagedorn, Monica | Hahn, David R | Halayko, Andrew J | Hamacher-Brady, Anne | Hamada, Kozo | Hamai, Ahmed | Hamann, Andrea | Hamasaki, Maho | Hamer, Isabelle | Hamid, Qutayba | Hammond, Ester M | Han, Feng | Han, Weidong | Handa, James T | Hanover, John A | Hansen, Malene | Harada, Masaru | Harhaji-Trajkovic, Ljubica | Harper, J Wade | Harrath, Abdel Halim | Harris, Adrian L | Harris, James | Hasler, Udo | Hasselblatt, Peter | Hasui, Kazuhisa | Hawley, Robert G | Hawley, Teresa S | He, Congcong | He, Cynthia Y | He, Fengtian | He, Gu | He, Rong-Rong | He, Xian-Hui | He, You-Wen | He, Yu-Ying | Heath, Joan K | Hébert, Marie-Josée | Heinzen, Robert A | Helgason, Gudmundur Vignir | Hensel, Michael | Henske, Elizabeth P | Her, Chengtao | Herman, Paul K | Hernández, Agustín | Hernandez, Carlos | Hernández-Tiedra, Sonia | Hetz, Claudio | Hiesinger, P Robin | Higaki, Katsumi | Hilfiker, Sabine | Hill, Bradford G | Hill, Joseph A | Hill, William D | Hino, Keisuke | Hofius, Daniel | Hofman, Paul | Höglinger, Günter U | Höhfeld, Jörg | Holz, Marina K | Hong, Yonggeun | Hood, David A | Hoozemans, Jeroen JM | Hoppe, Thorsten | Hsu, Chin | Hsu, Chin-Yuan | Hsu, Li-Chung | Hu, Dong | Hu, Guochang | Hu, Hong-Ming | Hu, Hongbo | Hu, Ming Chang | Hu, Yu-Chen | Hu, Zhuo-Wei | Hua, Fang | Hua, Ya | Huang, Canhua | Huang, Huey-Lan | Huang, Kuo-How | Huang, Kuo-Yang | Huang, Shile | Huang, Shiqian | Huang, Wei-Pang | Huang, Yi-Ran | Huang, Yong | Huang, Yunfei | Huber, Tobias B | Huebbe, Patricia | Huh, Won-Ki | Hulmi, Juha J | Hur, Gang Min | Hurley, James H | Husak, Zvenyslava | Hussain, Sabah NA | Hussain, Salik | Hwang, Jung Jin | Hwang, Seungmin | Hwang, Thomas IS | Ichihara, Atsuhiro | Imai, Yuzuru | Imbriano, Carol | Inomata, Megumi | Into, Takeshi | Iovane, Valentina | Iovanna, Juan L | Iozzo, Renato V | Ip, Nancy Y | Irazoqui, Javier E | Iribarren, Pablo | Isaka, Yoshitaka | Isakovic, Aleksandra J | Ischiropoulos, Harry | Isenberg, Jeffrey S | Ishaq, Mohammad | Ishida, Hiroyuki | Ishii, Isao | Ishmael, Jane E | Isidoro, Ciro | Isobe, Ken-ichi | Isono, Erika | Issazadeh-Navikas, Shohreh | Itahana, Koji | Itakura, Eisuke | Ivanov, Andrei I | Iyer, Anand Krishnan V | Izquierdo, José M | Izumi, Yotaro | Izzo, Valentina | Jäättelä, Marja | Jaber, Nadia | Jackson, Daniel John | Jackson, William T | Jacob, Tony George | Jacques, Thomas S | Jagannath, Chinnaswamy | Jain, Ashish | Jana, Nihar Ranjan | Jang, Byoung Kuk | Jani, Alkesh | Janji, Bassam | Jannig, Paulo Roberto | Jansson, Patric J | Jean, Steve | Jendrach, Marina | Jeon, Ju-Hong | Jessen, Niels | Jeung, Eui-Bae | Jia, Kailiang | Jia, Lijun | Jiang, Hong | Jiang, Hongchi | Jiang, Liwen | Jiang, Teng | Jiang, Xiaoyan | Jiang, Xuejun | Jiang, Xuejun | Jiang, Ying | Jiang, Yongjun | Jiménez, Alberto | Jin, Cheng | Jin, Hongchuan | Jin, Lei | Jin, Meiyan | Jin, Shengkan | Jinwal, Umesh Kumar | Jo, Eun-Kyeong | Johansen, Terje | Johnson, Daniel E | Johnson, Gail VW | Johnson, James D | Jonasch, Eric | Jones, Chris | Joosten, Leo AB | Jordan, Joaquin | Joseph, Anna-Maria | Joseph, Bertrand | Joubert, Annie M | Ju, Dianwen | Ju, Jingfang | Juan, Hsueh-Fen | Juenemann, Katrin | Juhász, Gábor | Jung, Hye Seung | Jung, Jae U | Jung, Yong-Keun | Jungbluth, Heinz | Justice, Matthew J | Jutten, Barry | Kaakoush, Nadeem O | Kaarniranta, Kai | Kaasik, Allen | Kabuta, Tomohiro | Kaeffer, Bertrand | Kågedal, Katarina | Kahana, Alon | Kajimura, Shingo | Kakhlon, Or | Kalia, Manjula | Kalvakolanu, Dhan V | Kamada, Yoshiaki | Kambas, Konstantinos | Kaminskyy, Vitaliy O | Kampinga, Harm H | Kandouz, Mustapha | Kang, Chanhee | Kang, Rui | Kang, Tae-Cheon | Kanki, Tomotake | Kanneganti, Thirumala-Devi | Kanno, Haruo | Kanthasamy, Anumantha G | Kantorow, Marc | Kaparakis-Liaskos, Maria | Kapuy, Orsolya | Karantza, Vassiliki | Karim, Md Razaul | Karmakar, Parimal | Kaser, Arthur | Kaushik, Susmita | Kawula, Thomas | Kaynar, A Murat | Ke, Po-Yuan | Ke, Zun-Ji | Kehrl, John H | Keller, Kate E | Kemper, Jongsook Kim
Autophagy  2016;12(1):1-222.
PMCID: PMC4835977  PMID: 26799652
autolysosome; autophagosome; chaperone-mediated autophagy; flux; LC3; lysosome; macroautophagy; phagophore; stress; vacuole
4.  APOE genotype and stress response - a mini review 
The APOE gene is one of currently only two genes that have consistently been associated with longevity. Apolipoprotein E (APOE) is a plasma protein which plays an important role in lipid and lipoprotein metabolism. In humans, there are three major APOE isoforms, designated APOE2, APOE3, and APOE4. Of these three isoforms, APOE3 is most common while APOE4 was shown to be associated with age-related diseases, including cardiovascular and Alzheimer’s disease, and therefore an increased mortality risk with advanced age. Evidence accumulates, showing that oxidative stress and, correspondingly, mitochondrial function is affected in an APOE isoform-dependent manner. Accordingly, several stress response pathways implicated in the aging process, including the endoplasmic reticulum stress response and immune function, appear to be influenced by the APOE genotype. The investigation and development of treatment strategies targeting APOE4 have not resolved any therapeutic yet that could be entirely recommended. This mini-review provides an overview on the state of research concerning the impact of the APOE genotype on stress response-related processes, emphasizing the strong interconnection between mitochondrial function, endoplasmic reticulum stress and the immune response. Furthermore, this review addresses potential treatment strategies and associated pitfalls as well as lifestyle interventions that could benefit people with an at risk APOE4 genotype.
PMCID: PMC4960866  PMID: 27457486
Apolipoprotein E isoform; Oxidative stress; Endoplasmic reticulum stress; Mitochondrial function; Immune function; Therapeutic intervention
5.  Restriction on an Energy-Dense Diet Improves Markers of Metabolic Health and Cellular Aging in Mice Through Decreasing Hepatic mTOR Activity 
Rejuvenation Research  2015;18(1):30-39.
Dietary restriction (DR) on a normal low-fat diet improves metabolic health and may prolong life span. However, it is still uncertain whether restriction of an energy-dense, high-fat diet would also be beneficial and mitigate age-related processes. In the present study, we determined biomarkers of metabolic health, energy metabolism, and cellular aging in obesity-prone mice subjected to 30% DR on a high-fat diet for 6 months. Dietary-restricted mice had significantly lower body weights, less adipose tissue, lower energy expenditure, and altered substrate oxidation compared to their ad libitum–fed counterparts. Hepatic major urinary proteins (Mup) expression, which is linked to glucose and energy metabolism, and biomarkers of metabolic health, including insulin, glucose, cholesterol, and leptin/adiponectin ratio, were likewise reduced in high-fat, dietary-restricted mice. Hallmarks of cellular senescence such as Lamp2a and Hsc70 that mediate chaperone-mediated autophagy were induced and mechanistic target of rapamycin (mTOR) signaling mitigated upon high-fat DR. In contrast to DR applied in low-fat diets, anti-oxidant gene expression, proteasome activity, as well as 5′-adenosine monophosphate–activated protein kinase (AMPK) activation were not changed, suggesting that high-fat DR may attenuate some processes associated with cellular aging without the induction of cellular stress response or energy deprivation.
PMCID: PMC4340804  PMID: 25405871
6.  A nutritional perspective on cellular rejuvenation 
Oncotarget  2015;6(16):13846-13847.
PMCID: PMC4546432  PMID: 26116836
7.  Biomarkers of oxidative stress, antioxidant defence and inflammation are altered in the senescence-accelerated mouse prone 8 
Age  2012;35(4):1205-1217.
In this study we compared biomarkers of oxidative stress, stress response, antioxidant defence and inflammation between mice (n = 10 per group, female, 7 months old) with an accelerated (SAMP8) and a normal ageing phenotype (SAMR1). As compared to SAMR1 mice, SAMP8 mice exhibited higher levels of lipid peroxides and protein carbonyls as well as a lower activity of the proteasomal subunit β-5. Furthermore, heme oxygenase-1 and paraoxonase-1 (PON-1) status was lower in SAMP8 mice indicating impaired stress response. Biomarkers of inflammation such as C-reactive protein and serum amyloid P were elevated in SAMP8 mice. Interestingly, impaired stress response and increased inflammation in SAMP8 mice were associated with elevated concentrations of ascorbic acid and α-tocopherol in the liver. An age-dependent increase in hepatic vitamin E and a decline in PON-1 gene expression were also observed in aged compared to young C57BL/6 mice.
PMCID: PMC3705129  PMID: 22767392
SAMP8; Accelerated ageing; Stress response; Proteasomal activity; Ascorbic acid; Tocopherol
8.  Adenosine triphosphate concentrations are higher in the brain of APOE3- compared to APOE4-targeted replacement mice and can be modulated by curcumin 
Genes & Nutrition  2014;9(3):397.
Curcumin from Curcuma longa may exert putative neuroprotective properties in the brain. Impaired mitochondrial function is implicated in Alzheimer’s disease and the presence of the apolipoprotein (APO) E4 genotype, which is a risk factor for late-onset Alzheimer’s disease, may aggravate mitochondrial malfunction. Here, we report that in the brain of 16-month-old APOE4-targeted replacement mice, adenosine triphosphate (ATP) concentrations were significantly lower than in APOE3 mice. A 3-month dietary supplementation of 0.2 % curcumin numerically increased ATP concentrations in APOE3 and significantly in APOE4 mice compared to the respective controls. Curcumin significantly induced the transcription of peroxisome proliferator-activated receptor (PPAR) γ and mitochondrial transcription factor A (TFAM) in APOE3, but not in APOE4 mice. Moreover, PPARγ coactivator (PGC)-1α and guanine–adenine repeat binding protein α (GABPa) mRNA was only increased in APOE3 mice. Consistent with these observations, protein expression of mitochondrial respiratory complexes, especially of complex IV, also appeared to be increased in APOE3 mice. In conclusion, we provide evidence that curcumin affects mitochondrial function and gene and protein expression in the murine brain despite its low bioavailability and carriers of the Alzheimer’s disease-risk genotype APOE4 may be less responsive to dietary curcumin than APOE3 carriers.
PMCID: PMC4026431  PMID: 24671632
Curcumin; APOE; Mitochondrial function; ATP synthesis; Mice
9.  Curcumin may impair iron status when fed to mice for six months 
Redox Biology  2014;2:563-569.
Curcumin has been shown to have many potentially health beneficial properties in vitro and in animal models with clinical studies on the toxicity of curcumin reporting no major side effects. However, curcumin may chelate dietary trace elements and could thus potentially exert adverse effects. Here, we investigated the effects of a 6 month dietary supplementation with 0.2% curcumin on iron, zinc, and copper status in C57BL/6J mice. Compared to non-supplemented control mice, we observed a significant reduction in iron, but not zinc and copper stores, in the liver and the spleen, as well as strongly suppressed liver hepcidin and ferritin expression in the curcumin-supplemented mice. The expression of the iron-importing transport proteins divalent metal transporter 1 and transferrin receptor 1 was induced, while hepatic and splenic inflammatory markers were not affected in the curcumin-fed mice. The mRNA expression of other putative target genes of curcumin, including the nuclear factor (erythroid-derived 2)-like 2 and haem oxygenase 1 did not differ between the groups. Most of the published animal trials with curcumin-feeding have not reported adverse effects on iron status or the spleen. However, it is possible that long-term curcumin supplementation and a Western-type diet may aggravate iron deficiency. Therefore, our findings show that further studies are needed to evaluate the effect of curcumin supplementation on iron status.
Graphical abstract
A 6 month dietary supplementation with 0.2% curcumin in C57BL/6J mice led to a significant reduction in iron, but not zinc and copper stores, in the liver and the spleen, and suppressed liver hepcidin and ferritin expression. Furthermore, the expression of the iron-importing transport proteins divalent metal transporter (DMT) 1 and transferrin receptor (TfR) 1 was induced in the curcumin-fed mice. These data suggest that long-term curcumin supplementation and a Western-type diet may aggravate iron deficiency.
•0.2% dietary curcumin for 6 months reduced iron stores in murine liver and spleen.•Curcumin chelated iron but not zinc and copper in vivo.•Liver hepcidin and ferritin expression was strongly suppressed in curcumin-fed mice.•Curcumin induced expression of hepatic iron transporters DMT1 and TfR1.•Curcumin did not affect hepatic and splenic inflammatory and oxidative markers.
PMCID: PMC3953957  PMID: 24634837
γ-GCS, γ-glutamyl cysteine synthetase; DMT1, divalent metal transporter 1; FPN, ferroportin; HO1, haem oxygenase; IL, interleukin; NQO1, NAD(P)H quinone oxidoreductase; NRF2, nuclear factor (erythroid-derived 2)-like 2; qRT-PCR, quantitative real-time polymerase chain reaction; TBS, tris buffered saline; TfR1, transferrin receptor 1; TNFα, tumour necrosis factor α; Curcumin; Iron store; Liver minerals; Safety; Enlarged spleen; Toxicity
10.  Variability in APOE genotype status in human-derived cell lines: a cause for concern in cell culture studies? 
Genes & Nutrition  2013;9(1):364.
Although cell culture studies have provided landmark discoveries in the basic and applied life sciences, it is often under-appreciated that cells grown in culture are prone to generating artifacts. Here, we introduce the genotype status (exemplified by apolipoprotein E) of human-derived cells as a further important parameter that requires attention in cell culture experiments. Epidemiological and clinical studies indicate that variations from the main apolipoprotein E3/E3 genotype might alter the risk of developing chronic diseases, especially neurodegeneration, cardiovascular disease, and cancer. Whereas the apolipoprotein E allele distribution in human populations is well characterized, the apolipoprotein E genotype of human-derived cell lines is only rarely considered in interpreting cell culture data. However, we find that primary and immortalized human cell lines show substantial variation in their apolipoprotein E genotype status. We argue that the apolipoprotein E genotype status and corresponding gene expression level of human-derived cell lines should be considered to better avoid (or at least account for) inconsistencies in cell culture studies when different cell lines of the same tissue or organ are used and before extrapolating cell culture data to human physiology in health and disease.
PMCID: PMC3896624  PMID: 24297645
APOE; Cell culture artifacts; Human-derived cell lines; Genotyping; Cardiovascular disease; Neurodegeneration
11.  Nutrition and Healthy Ageing: Calorie Restriction or Polyphenol-Rich “MediterrAsian” Diet? 
Diet plays an important role in mammalian health and the prevention of chronic diseases such as cardiovascular disease (CVD). Incidence of CVD is low in many parts of Asia (e.g., Japan) and the Mediterranean area (e.g., Italy, Spain, Greece, and Turkey). The Asian and the Mediterranean diets are rich in fruit and vegetables, thereby providing high amounts of plant bioactives including polyphenols, glucosinolates, and antioxidant vitamins. Furthermore, oily fish which is rich in omega-3 fatty acids is an important part of the Asian (e.g., Japanese) and also of the Mediterranean diets. There are specific plant bioactives which predominantly occur in the Mediterranean (e.g., resveratrol from red wine, hydroxytyrosol, and oleuropein from olive oil) and in the Asian diets (e.g., isoflavones from soybean and epigallocatechin gallate from green tea). Interestingly, when compared to calorie restriction which has been repeatedly shown to increase healthspan, these polyphenols activate similar molecular targets such as Sirt1. We suggest that a so-called “MediterrAsian” diet combining sirtuin-activating foods (= sirtfoods) of the Asian as well as Mediterranean diet may be a promising dietary strategy in preventing chronic diseases, thereby ensuring health and healthy ageing. Future (human) studies are needed which take the concept suggested here of the MediterrAsian diet into account.
PMCID: PMC3771427  PMID: 24069505
12.  Apolipoprotein E genotype affects tissue metallothionein levels: studies in targeted gene replacement mice 
Genes & Nutrition  2012;7(2):247-255.
The apolipoprotein E (APOE) genotype is an important risk factor for ageing and age-related diseases. The APOE4 genotype (in contrast to APOE3) has been shown to be associated with oxidative stress and chronic inflammation. Metallothioneins (MT) exhibit antioxidant and anti-inflammatory activity, and MT overexpression has been shown to increase lifespan in mice. Interactions between APOE and MT, however, are largely unknown. Hence, we determined the effect of the APOE4 versus APOE3 genotype on MT levels in targeted gene replacement mice. APOE4 versus APOE3 mice exhibited significantly lower hepatic MT1 and MT2 mRNA as well as lower MT protein levels. The decrease in hepatic MT protein levels in APOE4 as compared to APOE3 mice was accompanied by lower nuclear Nrf1, a protein partly controlling MT gene expression. Cell culture experiments using hepatocytes identified allyl-isothiocyanate (AITC) as a potent MT inductor in vitro. Therefore, we supplemented APOE3 and APOE4 mice with AITC. However, AITC (15 mg/kg b.w.) could only partly correct for decreased MT1 and MT2 gene expression in APOE4 mice in vivo. Furthermore, cholesterol significantly decreased both Nrf1 and MT mRNA levels in Huh7 cells indicating that differences in MT gene expression between the two genotypes could be related to differences in hepatic cholesterol concentrations. Overall, present data suggest that the APOE genotype is an important determinant of tissue MT levels in mice and that MT gene expression may be impaired by the APOE4 genotype.
PMCID: PMC3316750  PMID: 22328270
APOE; Metallothionein; Nrf1; Ageing; Mice
13.  Apolipoprotein E genotype and hepatitis C, HIV and herpes simplex disease risk: a literature review 
Apolipoprotein E is a polymorphic and multifunctional protein with numerous roles in lipoprotein metabolism. The three common isoforms apoE2, apoE3 and apoE4 show isoform-specific functional properties including different susceptibilities to diseases. ApoE4 is an accepted risk factor for Alzheimer's disease and cardiovascular disorders. Recently, associations between apoE4 and infectious diseases have been demonstrated. This review summarises how apoE4 may be involved in the infection incidence and associated pathologies of specific infectious diseases, namely hepatitis C, human immunodeficiency virus disease and herpes simplex.
ApoE4 seems to be protective against chronic hepatitis C virus infection and retards fibrosis progression. In contrast apoE4 enhances the fusion rate of human immunodeficiency virus with target cell membranes, resulting in accelerated cell entry and faster disease progression. Its association with human immunodeficiency virus-associated dementia remains controversial. Regarding herpes simplex virus infection, apoE4 intensifies virus latency and is associated with increased oxidative damage of the central nervous system, and there is some evidence that herpes simplex virus infection in combination with the apoE4 genotype may be associated with an increased risk of Alzheimer's disease. In addition to reviewing available data from human trials, evidence derived from a variety of cell culture and animal models are considered in this review in order to provide mechanistic insights into observed association between apoE4 genotype and viral disease infection and pathology.
PMCID: PMC2830997  PMID: 20109174
14.  Ochratoxin A induces apoptosis in neuronal cells 
Genes & Nutrition  2009;4(1):41-48.
The mycotoxin ochratoxin A (OTA), which is produced by Aspergillus and Penicillium subspecies, is a frequently present contaminant of food and feedstuffs. OTA exhibits a wide range of toxic activities including nephro- and hepatotoxicity. However, little is known regarding potential neurotoxic effects of OTA. In the present study primary neurons as well as SH-SY5Y neuronal cells were incubated with increasing concentrations of OTA (0.1–2.5 μmol/L). OTA treatment resulted in a dose-dependent increase in cytotoxicity in both neuronal cell types. Caspase-9 and caspase-3 were activated in response to OTA treatment. Furthermore, caspase inhibitors were effective in partly counteracting OTA induced neurocytotoxicity. OTA induced apoptosis was accompanied by a loss of mitochondria membrane potential. Overall, present data indicated that OTA is neurotoxic at relatively low concentrations. OTA induced neurotoxicity seems to be, at least party, mediated by apoptosis. OTA may contribute to the pathogenesis of neurodegenerative diseases (e.g. Alzheimer’s and Parkinson’s disease) in which apoptotic processes are centrally involved.
PMCID: PMC2654052  PMID: 19148691
Ochratoxin A; Mycotoxin; Neurons; Apoptosis; Programmed cell death; Neurotoxicity; Alzheimer’s disease
15.  Effects of apoE genotype on macrophage inflammation and heme oxygenase-1 expression 
In order to gain a more comprehensive understanding of the aetiology of apolipoprotein E4 genotype-cardiovascular disease (CVD) associations, the impact of the apoE genotype on the macrophage inflammatory response was examined. The murine monocyte–macrophage cell line (RAW 264.7) stably transfected to produce equal amounts of human apoE3 or apoE4 was used. Following LPS stimulation, apoE4-macrophages showed higher and lower concentrations of tumour necrosis factor alpha (pro-inflammatory) and interleukin 10 (anti-inflammatory), respectively, both at mRNA and protein levels. In addition, increased expression of heme oxygenase-1 (a stress-induced anti-inflammatory protein) was observed in the apoE4-cells. Furthermore, in apoE4-macrophages, an enhanced transactivation of the key redox sensitive transcription factor NF-κB was shown. Current data indicate that apoE4 macrophages have an altered inflammatory response, which may contribute to the higher CVD risk observed in apoE4 carriers.
PMCID: PMC2096715  PMID: 17416347
apoE genotype; Macrophage; Cytokines; Nuclear factor κB; Heme oxygenase-1; Tumour necrosis factor α; Inflammation; Oxidative stress; Redox signalling
16.  Effects of apoE genotype on macrophage inflammation and heme oxygenase-1 expression 
In order to gain a more comprehensive understanding of the aetiology of apolipoprotein E4 genotype-cardiovascular disease (CVD) associations, the impact of the apoE genotype on the macrophage inflammatory response was examined. The murine monocyte–macrophage cell line (RAW 264.7) stably transfected to produce equal amounts of human apoE3 or apoE4 was used. Following LPS stimulation, apoE4-macrophages showed higher and lower concentrations of tumour necrosis factor alpha (pro-inflammatory) and interleukin 10 (anti-inflammatory), respectively, both at mRNA and protein levels. In addition, increased expression of heme oxygenase-1 (a stress-induced anti-inflammatory protein) was observed in the apoE4-cells. Furthermore, in apoE4-macrophages, an enhanced transactivation of the key redox sensitive transcription factor NF-κB was shown. Current data indicate that apoE4 macrophages have an altered inflammatory response, which may contribute to the higher CVD risk observed in apoE4 carriers.
PMCID: PMC2096715  PMID: 17416347
apoE genotype; Macrophage; Cytokines; Nuclear factor κB; Heme oxygenase-1; Tumour necrosis factor α; Inflammation; Oxidative stress; Redox signalling

Results 1-16 (16)